<template>
  <div class="progress-circle">
    <svg :width="radius" :height="radius" viewBox="0 0 100 100" version="1.1" xmlns="http://www.w3.org/2000/svg">
      <circle class="progress-background" r="50" cx="50" cy="50" fill="transparent"/>
      <circle class="progress-bar" r="50" cx="50" cy="50" fill="transparent" :stroke-dasharray="dashArray"
              :stroke-dashoffset="dashOffset"/>
    </svg>
    <slot></slot>
  </div>
</template>

<script type="text/ecmascript-6">
  export default{
    props: {
      radius: {
        type: Number,
        default: 100
      },
      precent: {
        type: Number,
        default: 0
      }


    },
    data(){
      return {
        dashArray: Math.PI * 100  //计算圆的周长
      }

    },
    computed: {
      dashOffset(){
        return (1 - this.precent) * this.dashArray
      }


    }
  }

</script>

<style lang="stylus" type="text/stylus" rel="stylesheet/stylus" scoped>
  @import "~common/stylus/variable"

  .progress-circle
    position: relative
    circle
      stroke-width: 8px
      transform-origin: center
      &.progress-background
        transform: scale(0.9)
        stroke: $color-theme-d
      &.progress-bar
        transform: scale(0.9) rotate(-90deg)
        stroke: $color-theme
</style>

